Automatic radio telegraphic transmitter



Dec. 25, 1928. 1,696,779

P. c. ANDUX Y PEREZ AUTOMATIC RADIO TELEGRAPHIC TRANSMITTER Filed Aug. 25, 1927 3 Sheets-Sheet 1 an auquc fedro Ciflndzer YPeT'e Dec. 25, 1928 1,696,779

P. c. ANDUX Y PEREZ .AUTOMATIC RADIO TELEGRAPHIC TRANSMITTER Pedro Cf/induxll ere Filed Aug. 25, 1927 3 Shee LS-Sheet 2 IN V EN TOR.

Dec. 25, 1928. Y 1,696,779

P. c. ANDUX Y PEREZ AUTOMATIC RADIO TELEGRAPHIC TRANSMITTER Filed Aug. 25, 1927 s Sheets-Sheet 3 INVENTOR.

Pedro C. zlndux Yflzn W A TTORNEY Patented Dec. 25, 1928.

UNITED STATES PEDRO C. ANDUX Y PEREZ, OF HABANA, CUBA.

AUTOMATIC RADIO TELEGRAPHIC TRANSMITTER.

Application filed August 25, 1927, Serial No.215,441, and in Cuba February 4, 1627.

This invention relates to a radio -tele-.

graphic apparatus, and has for its object to provide, in a manner as hereinafter set forth, an apparatus of such classenabling any one to transmit the position of a marine vessel, submarine, aeroplane, etc., without the knowledge of telegraphy.

A further object of the-invention is to pro-- ride, in a manner as hereinafter'set forth, an apparatus of such class for transmitting, at brief intervals, the situation, and name of the vessel, etc., without the presence of an operator.

A further object of the invention is to provide, in a manner as hereinafter set forth, an apparatus of such class for automatically transmitting, at brief intervals, the situation, name of the vessel, etc., when the operator leaves the vessel in the event of peril.

A further object of the invention is to proride, in a manner as hereinafter set forth, an apparatus of the class'referred to for automatically transmitting the position of a marine vessel or a sunken submarine, if the entire crew has perished.

A further object'of the invention is to provide, in a manner as hereinafter set forth, an apparatus of the class referred to capable of use in connection with small vessels and aero- 'with the land without the employment of planes fpr establishing radio communication wireless operators.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a radio-telegraphic apparatus which is com paratively simple in its construction and arrangement, strong, durable, vcompact,'tbor,- oughly efiicient ini ts use, conveniently set for transmitting )urposes, readily assembled, and comparatively inexpensive to manufacture. 7

With the foregoing and other objects in view'the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically de scribed, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but. it is to be understood that changes, variations and modifications,

can be resorted to which e111 within the scope of "the claims hereunto" appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a plan'view of a radio-telegraphic apparatus in accordance with this invention.

Figure 2 is an elevation looking towards one side thereof.

Figure 3 is an elevation looking towards the other side thereof. Y

Figure 4 is a fragmentary view in'section of the signalling distributing mechanism.

Figure 5 is a side elevation of an interrupter lever showing the adaptation thereof with respect to a signal cam and a circuit closing means.

Figure 6 is a detailed, front elevation, of the signal distributing device;

Figure 7 is .a side elevation of the gear drive.

A radio-telegraphic apparatus, or what may be termed an automatic radio-telegraphic transmitter comprises a base A, a signal combining mechanism B, asignal interrupter mechanism C, a signal distributing device D, a gear drive E, two pair of terminals H and I for connection respectively with asource of current H and the transmitting key, not shown, of the station with which is combined the apparatus, a bridge J for the purpose of cutting out the signal cam corresponding to the S O. S signal, a switch K, a motor G, and a relay F.

The base A carries the other elements of the apparatus and is constructed of any suitable material, preferably insulation. As illustrated the base is of rectangular contour but it can be of any desired shape.

The signal combining mechanism, that is to say a mechanism to combine the'signals to be transmitted, is ositioned at one end of the base A and inc udes a rectangular frame 1 formed of insulation material and positioned Within said frame is a. series of metallic bars '2, arranged in parallelism and insulated from each other. Each of the bars 2 has its upper face formed with a notch or channel 3. The insulation between the bars 2 is indicated at 3. Each of the metallic bars corresponds to one of the signals, signs or letters, the total number thereof being variable, there being nineteen of them in the present case, and said signals, signs or letters as illustrated are S O S, name of the vessel, latitude, north, south, longitude, east, west, one, two, three, four, five, six,seven, eight,nine, cipher, period,

indicated respectively at a, b, c, d, e, f, g, h,

2', j, k, Z, m, n, 0, p, g, and 1'. The said signs or signals being drawn, printed, etched or otherwise represented atone end of the ends of said metallic bars and exactly in front of them, in order to identify the sign or letter corresponding to each of them. Carried by the frame 1 and extending transversely with respect to the bars 2 are spaced metallic rods 4, which provide guides for slidable circuit closing members 5. Each bar 4 is provided with a circuit closing member!) and each of the latter carries a resilient contact 5 engageable in a channel 3 whereby the member 5 and that bar 2 with which it contacts will close a signal circuit.

The interrupter mechanism C is mounted upon the base A and spaced from the signal combining mechanism B and said interrupter mechanism C comprises a shaft 6 supported in superposed relation with respect to the base A by the standards 6'. Pivoted on the shaft 6 is a series of interrupter levers of ap propriate length and each of which consists of a metallic bar 7 provided at one end with an "angularly disposed, depending projection 7 of wedge-shape in contour and which con stitutes a rider. The bar 7 at its other end is formedwith a flexible extension 8 .of arc shaped contour provided at its free end with a contact point 8', see Figure 5, and which preferably will be formed from silver or plat-- inum. The interrupter levers are arranged in parallelism and normally maintained in neutral position by springs 10. The extensions 8 in connection with the cont-acts 8 provide circuit opening-and closing means to set up {he pode signs to be transmitted by the repaced from the supports 6 and secured to the base A are standards A having secured to the upper ends thereof an insulation bar 9 provided with-a series of spaced contact members 13 and each of which associates with a contact point 8. Connected to the ends of the bar 9 are upstanding arms 9" carrying angularly disposed anchoring means for the upper ends of the springs 10. The lower ends of the springs 10 are connected to the interrupter levers as at 11. Each interrupter leverv has a spring 10 connected therewith and in close proximity to the extension 8.

Associated with each interrupter lever is a slgnal cam 15 which is rigidly mounted on v a shaft 16 and rotated thereby. The cams 15 are maintained in spaced relation by spacing washers 17 carried by, the shaft 16. Each signal cam is provided along its periphery, with indentations or grooves the root length whereof is variable in order to form the dots and dashes corresponding to the code signs of selected signals. The root length or bottom face embraced between the commencement and the termination of any one signal sign or word shall be, at least, one fourth art of the circumference of the signal cam. he indentations or grooves formed on the neeenvo periphery of each cam and which correspond to the code signs of a selected signal for transmission are indicated at 15' Figure 1. The cams -15 engage the riders 7 or rather the riders 7 travel on the groove or indented edge or periphery 15' of the cams to provide for the oscillation of a lever to open and close the circuit to the relay'Fj The number of cams corresponds to the number of interrup ter levers. The commencement of all the code signs provided by the'grooved or in dented edges of the cams 15 shall be thesame and aligned by having the'initial indentations or grooves coincident.-

The signal distributmg device D is secured to the base A and spaced fromthe mechanisms B and C. The signal distributingflevice D comprises a vertically disposed panel 18 formed of insulation material and which is provided with spaced metallic contacts 19 set up in circular arrangement, and with the number thereof varied according to the use which will be given the apparatus, and as illustrated twenty-four contacts 19 are used. Extending through the panel 18, and disposed centrally with respect to the circular rows of contacts 19; is a rotatable shaft 20 of conducting material and provided at its intermittent shifting of the wheel 21. The

lever 22- includes a spring controlled dog 23 adapted to engage the ratchet wheel 21, see

' Figure 4 for shifting it. The ratchet lever 22 carries at its upper end a coupling member 24, which is pivotally connected as at 25 to an insulated operating rod 26, for the lever 22. The insulation portion of the rod 26 is indicated at 27 The means for operating the rod 26 will be hereinafter referred to. v

The gear drive or train E is employed for operating the shaft 16 whereby the cam 15 will bodily rotate therewith. The gear drive E includes a support 28, which is "secured to thebase A and spaced from the mechanisms B and C. J ournaled in the support 28 are shafts. 29, 30 and 31. One end of the shaft 16 is also journaled in the support 28. The shaft 29 carries a'pulley '32 and a pinion 33. The pulley 32 is of the grooved type. The shaft 30 carries a pinion 34 and a gear wheel 35. The shaft 31 carries a gear wheel 36 and also a sprocket pinion 37. .The pinion 33 meshes with the gear 35 for driving shaft 30.

' --conta.ct

, disc 40.

Thegear drive is operated from the motor G, and the latter has its shaft 4-2 extended and provided with a. grooved pulley 48, of less diameter than the pulley An endless belt it is provided for driving the pulley 32 from the pulley 13 on the shaft 42 of the motor G. The bars 2 are in circuit with the .contact terminals 13 through the medium of circuit conductors which lead from said contact'terminals 13 to one end of said bars 2. The circuit conductors which lead to the bars 2, other than that which-leads to that bar 2 which associates with S O S signal a,'are indicated at 45 and the circuit conductor which leads from a-contaet terminal 13 to that bar 2 which is associated with S O S signal a is indicated at 46 and which has interposed therein the bridge J. The bridge J is used to throw in or'out of circuit the signal e-anr corresponding to the S O S signal, internationally known as a distress signal, for the purpose of using this call at will. Each of the rods 4 has extending from oneend thereof a circuit carrier 46, and said circuit conductors are connected to a common conductor velement 47, and the latter is also common to the electricgl conductors 48 which lead from the 19.

t The terminal posts of the motor G are in dicated at 49 and 50. Leading from the post 50 to one of the terminals H is a circuit conductor 51. Leading from thevpost 4 9 to the relay F is a circuit conductor Leading from the relay F to the shaft 20 is a circuit conductor 53. A condenser 54 is mounted/on the base and leading therefrom to the support 28 is a circuitconductor '55 and extending from the condenser 54 to the v circuitconductor 53 is a circuit conductor 56.

The controlling switch K has an electrical conductor 57 leading therefrom to'the other t erminal H. 1 The circuit connections between the'term'inals H and the battery'H are indicatedat 5,8, 59. Leading from the switch .'K to the motor terminal 49 is an electricconductor 60. A circuit conductor 61 is electrieally connected with one of the cbnductors 48 and with the shaft 16. As before stated the shaft 16 has one end mounted in the support 28. but the other end of the shaft 16 is mount ed in a support 62. An electrical conductor the contacts 19, which number, is twentyfour, due to the fact that two groups of three each are hooked up to Contact terminal 13 of signal cam 15 corresponding to the S O S call andthe name. of the steamer, as the case may be. Each one of the notched or channeled bars 2 areelectrically connected with a contact terminal 13 set up on the insulating bar 9 and which corresponds to a signal cam 15. The shaft 20 of the distributing device for the signals is electrically connected with one of the poles or leads of the clectro-magnets -11 and/l2 of the relay and with one of the terminals of the condenser 54, the other terminal being connected to the-support 28 of the gear drive. From the electrical conbductor 51 an electrical conductor -13 leads to the-support 28.

In operation, the apparatus works as fol lows :It will be assumed that'the battery H is connected to the group of terminals H as shown in Figure 1, circuit closures 5 are then placed in the position corresponding to the signals which it is desired to transmit, so

that they will electrically connect to guide rods 4, the selected notched or channeled bars 2, which will occur when the circuit closures engage in the notches'or channels 3. In this condition, the motor circuit/is closed to provide for the opera-tion'thereof, and which sets in motion the gear drive, which in turn operates the shaft 16 whereon aremounted the cams 15 and disc-40. The interrupter levers t-h'en commence to Vibrate around the shaft 6, following the profiles of the cams and successively establish contacts between the points 8 and contact terminals 13. As explained, all cams 15 are disposed insuch a manner that the commeneement of all signals or telegraphic words fall on the same line so that i When the signal cams have advanced about three-quarters of a turn, as a maximum, the disc 40 will operate the bar 26 and which. in

turn will actuatethe ratchet mechanism, advancing wheel 21 one tooth, inwhich ad- Vance a change of signals will be made by means of the contactarm' 20 upon making contact with the next point 19, which opera-- engagement with one of the contacts 19 of the signal distributor and during the period of inaction of said arm, the signal cams will operate to provide for the relay F to cause the transmitting of the selected signals.

The operation of transmitting will be had at brief intervals and as long as the switch K is closed. After the apparatus has been set for transmitting the desired signals, it does not require the attention of .anoperator or attendant. Therefore, it is thought the many advantages of anautomatic radio-telegraphic transmitter, in accordance with this inven tion, can be readily understood, and although the preferred embodiment of the invention is as illustrated and described, yet itisto be understood that changes in the details of construction can be had which fall within the scope of the invent-ion as claimed.

Vhat I claim is:

1. An apparatus comprising, a signal combining mechanism including a plurality of permanent signal indicators, each having a terminal, a signal distributing mechanism, means for selectively forming an electrical contact betweenthe respective signal indicator terminals and the distributing mechanism, means for forming a signal foreach of said signal indicators and for transmitting said signal to the corresponding terminal, and a relay electrically connected with the distributing mechanism for flashing the selected signal,

2. An apparatus for the purpose set forth comprising, a signal combining mechanism including a plurality of permanent signal in- (licators, each having a terminal, a s1gnal d1s v tributing n1echa11i'sm, neans for selectively forming an electrical contact between the respective signal indicator terminals and the distributing mechanism, a cam for each Sig nal indicator, said cams respectively having their peripheries formed in telegraphic representation of the corresponding telegraphic signal indicators, a contact for each of said cam peripheries in electrical-communicationwith the terminals of the signal indicators corresponding to the cams, and a relay electrically connected with the distributing mechanism for flashing the selected signal.

An apparatus for the purposeset forth comprising, a signal combining mechanism including a plurality of permanent signal indicators, each having a terminal, a signaldis tribnting mechanism including a rotatable disc having a set of contacts disposed concentrically thereof, means for selectively connecting the signal indicator terminals electrically with said contacts, means for forming a signal for each of said signal indicators and for transmitting said signals to the corresponding terminals, and a relay electrically connected with the distributing mechanism for flashing-the selected signal.

4. An apparatus for the purpose set forth comprising, aframe, a plurality of elongated parallel signal indicator terminals carried thereby, a plurality of contact carriers crossing the terminals and spaced therefrom, a

contact member slidable on each carrier, means for forming an 1ndependent signal for for the purpose set forth each terminal and transmitting the same thereto, a mechanism electrically connected with said contact members for distributing the signals, and'a relay electrically connected with the distributing mechanism for flashing said signals.

5.= An apparatus for the purpose. set forth comprising, a frame, a plurality of elongated parallel signal, indicator terminals carried thereby, a plurality of contact carriers crossing the terminalsand spaced therefrom, a contact member slidable on each carrier, a cam for each terminal, each of said cams having its periphery formed in telegraphic representation of a signal, means connecting said cam peripheries respectively with said terminals, a mechanism electrically connected with said contact members for distributing the signals, and a relay electrically connected with the distributing mechanism for flashing said signals.

6. An apparatus for the purpose set forth comprising a vframe, a plurality of elongated parallel signal indicator terminals carried thereby, a plurality of contact carriers crossing the terminals and spaced therefrom, a contact member slidable on each carrier, a cam for each terminal, each of said cams having its periphery formed in telegraphic representation of a signal, means connecting said cam peripheries respectively with said terminals, a rotatable disc having a set of contacts disposed concentrically thereof, means respectively connecting the disc contacts with said carrier contact members, and a relay e1ect-rically connected with the rotatable disc for flashing said signals.

7. An apparatus for the purpose set forth comprising, a frame, a plurality of elongated parallel signal indicator terminals carried thereby, a plurality of contact carriers crossing the terminals and spaced therefrom, a

contact member slidable on each carrier, a.-

cam for each terminal, each of said cams having its perlphery formed 1n telegraphic representat1on of a signal, means connecting said loo cam peripheries respectively with said terminals', a rotatable disc having a set of contacts disposed concentricall thereof, means respectively connecting the isc contacts with said carrier contact members, a relay adapted to flash signals, and means for connecting the relay progressively with said disc contacts.

In testimony whereof, I aflix my signature hereto.

PEDRO o. ANDUX Y PEREZ, 

